APA (7th ed.) Citation

Avi-Itzhak, B., & Heyman, D. P. (1973). Approximate Queuing Models for Multiprogramming Computer Systems. Operations Research, 21(6), 1212. https://doi.org/10.1287/opre.21.6.1212

Chicago Style (17th ed.) Citation

Avi-Itzhak, B., and D. P. Heyman. "Approximate Queuing Models for Multiprogramming Computer Systems." Operations Research 21, no. 6 (1973): 1212. https://doi.org/10.1287/opre.21.6.1212.

MLA (9th ed.) Citation

Avi-Itzhak, B., and D. P. Heyman. "Approximate Queuing Models for Multiprogramming Computer Systems." Operations Research, vol. 21, no. 6, 1973, p. 1212, https://doi.org/10.1287/opre.21.6.1212.